Reverse commit 75317a0 since this is a special case.
Eliminate the real reason for the inability to boot the kernel.
Linux kernel hangs in early boot on 32-bit ARM platform,
when ftrace 4-byte "mcount" function call location for
"_raw_spin_unlock_irqrestore" function straddles icache lines.
The problem is present for (cross-compiler) GCC 10, 11, 12.
It does not happen when the kernel is compiled with GCC 9,
even when condition (1) is satisfied.
Detailed description:
https://forum.armbian.com/topic/41339-linux-image-legacy-sunxi2451-kernel-6192-is-broken-stuck-at-starting-kernel/?do=findComment&comment=196528
